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Re: Philips CD-I/MESS Emulation Zelda's Adventure [Re: feedbax] #102135
10/21/15 12:40 PM
10/21/15 12:40 PM
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EoceneMiacid Offline
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You mean, the advert was a lie?

Re: Philips CD-I/MESS Emulation Zelda's Adventure [Re: feedbax] #102136
10/21/15 12:56 PM
10/21/15 12:56 PM
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R. Belmont Online content
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Yes. It was "marketing speak" for a commonly-known technique that had been used since the Atari 2600.

And it was also well known that using it in a game with a fast-moving character was an invitation to unfixable bugs; some of the code they put in to attempt to fix that resulted in even more brokenness. This is why the Genesis Sonics are a favorite of speedrunners.

Re: Philips CD-I/MESS Emulation Zelda's Adventure [Re: feedbax] #102138
10/21/15 08:14 PM
10/21/15 08:14 PM
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EoceneMiacid Offline
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That's interesting, I didn't know it actually meant something substantial beyond marketing speak for 'our cpu has over twice the clock speed than our rival's'.

I was being sarcastic, by the way.


Last edited by EoceneMiacid; 10/21/15 08:14 PM.
Re: Philips CD-I/MESS Emulation Zelda's Adventure [Re: feedbax] #102139
10/21/15 08:25 PM
10/21/15 08:25 PM
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Clock speed means nothing by itself; the 68000 takes a minimum of 4 cycles per instruction while the 65816 executes many useful operations in 1 or 2 cycles. Same reason the 1 MHz Apple II and C64 ran rings around 4 MHz Z80 machines and the original 4.77 MHz IBM PC.

Re: Philips CD-I/MESS Emulation Zelda's Adventure [Re: Haze] #102142
10/21/15 11:43 PM
10/21/15 11:43 PM
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feedbax Offline OP
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Originally Posted By Haze
you'd also be wasting your time, as the author of the driver states here, they've never really worked, it's still considered a preliminary driver.


F1ReB4LL said he had it working on Tinycdi. I've probably got the wrong bios or my game is in the wrong folder.

Re: Philips CD-I/MESS Emulation Zelda's Adventure [Re: feedbax] #102143
10/22/15 12:12 AM
10/22/15 12:12 AM
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F1ReB4LL Offline
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Originally Posted By feedbax
F1ReB4LL said he had it working on Tinycdi. I've probably got the wrong bios or my game is in the wrong folder.


Working with problems I've said. And you need to repack your chd with the older chdman, as already said above.

Re: Philips CD-I/MESS Emulation Zelda's Adventure [Re: feedbax] #102147
10/22/15 12:38 AM
10/22/15 12:38 AM
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Tafoid Offline
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Bottom line is that tinycdi is not an official release but a compilation of a certain driver at a certain time as a snapshot. Strictly speaking, MAMETESTERS only logs bugs/regressions that happened between official releases. In this case, MESS 0.134 and MESS 0.135. Sadly, CDI didn't work at all on 0.134 (setname CDI) and in 0.135 (setname CDIMONO1), it shows the same problem as it does now.

I was able to get the Zelda's Adventure (zeldaadv) to work with tinycdi with extracting the current CHD in circulation in softlist XML (version 5) and using MAME/MESS's tools from the era (0.134/0/135) CHDMAN to make a version specific (version 3) CHD - so that is your only recourse at this time.




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